= 19/20 x (98/100 + 2/100)
= 19/20 x 100/100
= 19/20 x 1
= 19/20
a.\(\dfrac{19}{20}\)x(\(\dfrac{98}{100}\)+\(\dfrac{2}{100}\))
=\(\dfrac{19}{20}\)x\(\dfrac{100}{100}\)
=\(\dfrac{19}{20}\)x1
=\(\dfrac{19}{20}\)
= 19/20 x (98/100 + 2/100)
= 19/20 x 100/100
= 19/20 x 1
= 19/20